Perform a variety of applications withThermo Scientific™ Forma™ environmental chambers, which can be configured for a variety of purposes and are available in multiple capacities. With a wide range of accessories and years of experience in constructing cabinets, we can construct units to match your most stringent applications.

Broad Range of Features and Controls:

Wide temperature range of 0° to 60°C that enhances the flexibility of the unit
Relative humidity control via steam generator from above ambient to 95% at 37°C (not available w/Cat. No. 3920)
Sophisticated digital controls
Programmable ramp and soak cycles for temperature and RH†
Durable cabinets with true laminar airflow through side plenums for extremely tight uniformity
Phenolic-coated evaporator for use in applications that create corrosive byproducts
Manual control of defrost and refrigeration cycles
Visible/audible safety alarms alert to over- and undertemperature conditions, deviation of humidity from set parameters (except Model 3920)

Durable Construction:

Cold-rolled steel, powder-coated cabinet
2″ (5.1cm) thick, CFC-free, foamed-in-place polyurethane insulation
Stainless-steel interior with solid stainless-steel adjustable shelves
Directed horizontal airflow system for excellent uniformity
Locking swivel casters for easy mobility during installation and cleaning
Leveling feet for stability and added safety in the lab

Broad Range of Options:

Interior lighting for Models 3920, 3940 and 3949 (Optional)
Reinforced shelving and flooring for heavy loads
Heatless dryer for lower humidity levels
Access ports for probes, sensors
Interior convenience receptacles
CO2 (IR sensor)
6″ and 12″ temperature chart recorder
Other custom options available

Compatible with:

Recorders (197075, 198036, 198039, 198042, 201144, 201145, 201146, 201147)
Reach-In/Environmental Chamber Solid Stainless-steel Shelf (224139)
Reach-In/Environmental Chamber Perforated Stainless-steel Shelf (224155)
Reinforced Stainless-steel Shelf (224161)
Fixed Reinforced Stainless-steel Shelf for two shakers (1900005)
Stainless-steel Door Glass Cover, factory installed (190591)

Recommended for:

Ideal for growth, stability and shelf-life testing applications

Ordering Information

† Humidity controller available on 3940/3949, 3911/3913 only